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Eriko Nakano, Atsushi Kanno, Atsushi Masamune, Naoki Yoshida, Seiji Hongo, Shin Miura, Tetsuya Takikawa, Shin Hamada, Kiyoshi Kume, Kazuhiro Kikuta, Morihisa Hirota, Keisuke Nakayama, Fumiyoshi Fujishima, Tooru Shimosegawa 
World J Gastroenterol 21(33):9808-9816. Published online Sep 7, 2015. doi: 10.3748/wjg.v21.i33.9808